ISFET pH Sensitivity: Counter-Ions Play a Key Role
نویسندگان
چکیده
منابع مشابه
ISFET pH Sensitivity: Counter-Ions Play a Key Role
The Field Effect sensors are broadly used for detecting various target analytes in chemical and biological solutions. We report the conditions under which the pH sensitivity of an Ion Sensitive Field Effect transistor (ISFET) sensor can be significantly enhanced. Our theory and simulations show that by using pH buffer solutions containing counter-ions that are beyond a specific size, the sensor...
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Sensor drift is an inevitable measurement problem and is particularly significant in the long term. The common practice is to have an auto-calibration facility (including standard buffers or accurate integrated actuators) mounted on the monitoring system. However, this approach may not be feasible when the monitoring system is miniaturized to the size of a capsule. In this paper, we develop an ...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2017
ISSN: 2045-2322
DOI: 10.1038/srep41305